25644880

素因数分解:

$2^4\times 5^1\times {\mathrm{320561}}^1$

素因数の和:320574

約数の個数: 20

約数和(自身を含む): 59624532

約数和(自身を除く): 33979652

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 320561, 641122, 1282244, 1602805, 2564488, 3205610, 5128976, 6411220, 12822440, 25644880]

約数ペア:

[(1, 25644880), (2, 12822440), (4, 6411220), (5, 5128976), (8, 3205610), (10, 2564488), (16, 1602805), (20, 1282244), (40, 641122), (80, 320561)]